Gallium-Nitride FETs Enable Compact 200W AC-DC Power AdapterNovember 05, 2019 by Paul Shepard
TRUMPower has introduced its new GaN FET TTG200 ac-dc power supply series targeting industrial and ITE applications requiring efficient electrical power conversion in a compact form factor. With an average efficiency of 91-93%, the 200-Watt power adapter meets the latest global energy efficiency standards for external supplies with its compliance to DoE Level VI, while offering a very low no-load power consumption of 0.15W max.
The power adapter comes in a compact 5.91" (L) x 2.13" (W) x 1.3" (H) enclosure with an IEC 320/C8 ac inlet or a 6.34" (L) x 2.13" (W) x 1.3" (H) case with an IEC 320/C14 ac inlet. The power supply has a range of 8 standard single output voltages between 12- to 56-Vdc.
The series operates with a universal input range of 100- to 240-Vac and operating temperatures between 0°C to +70°C ambient, while derating linearly from 100% load at +40°C to 50% load at +60°C (for the 12V output model) and from 100% load at +40°C to 50% load at 70°C (for the 18- to 56-V models).
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It has a power density of 12.5W/in3. The units are reliable with 300,000 hours minimum MTBF at 25°C ambient, calculated per Telcordia SR-332.
The TTG200 series carries the CE marking, is RoHS compliant, and is approved by UL/cUL and TUV to the latest ITE standards, including IEC/EN/UL 62368-1:2014 and IEC/EN/UL 60950-1 2nd edition.
The power adapter complies with EMC and immunity standards including EN 55032, CISPR 32/FCC,VCCI class B (conducted and radiated emissions), EN 61000-3-2, EN 61000-3-3, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61000-4-11.
It also meets energy star 2.0, ErP stage 2, CoC tier 2, NRCan & GEMS level VI standards.